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Virtualization

ID	Contact Title	Contact Name	Country	Rating


1	Sales Manager	Matti Karttunen	Bulgaria	1 2 3 4 5
2	Accounting Manager	Jaime Yorres	France	1 2 3 4 5
3	Marketing Assistant	Jaime Yorres	USA	1 2 3 4 5
4	Accounting Manager	Pascale Cartrain	Bulgaria	1 2 3 4 5
5	Sales Representative	Patricio Simpson	Italy	1 2 3 4 5
6	Sales Consultant	Howard Snyder	Spain	1 2 3 4 5
7	Accountant	Matti Karttunen	Bulgaria	1 2 3 4 5
8	Sales Agent	Patricio Simpson	Bulgaria	1 2 3 4 5
9	Marketing Assistant	Jaime Yorres	USA	1 2 3 4 5
10	Accounting Manager	Patricio Simpson	France	1 2 3 4 5
11	Sales Representative	Elizabeth Lincoln	Italy	1 2 3 4 5
12	Sales Representative	Georg Pipps	Austria	1 2 3 4 5
13	Sales Agent	Jaime Yorres	Spain	1 2 3 4 5
14	Sales Associate	Patricio Simpson	Spain	1 2 3 4 5
15	Accountant	Howard Snyder	Brazil	1 2 3 4 5
16	Sales Consultant	Hanna Moos	France	1 2 3 4 5
17	Marketing Assistant	Georg Pipps	Argentina	1 2 3 4 5
18	Sales Manager	Matti Karttunen	Brazil	1 2 3 4 5
19	Sales Representative	Jaime Yorres	France	1 2 3 4 5
20	Sales Manager	Antonio Moreno	Brazil	1 2 3 4 5
21	Owner	Antonio Moreno	Spain	1 2 3 4 5
22	Sales Representative	Hanna Moos	Argentina	1 2 3 4 5
23	Marketing Manager	Howard Snyder	Austria	1 2 3 4 5
24	Sales Agent	Elizabeth Lincoln	Italy	1 2 3 4 5
25	Sales Representative	Matti Karttunen	Germany	1 2 3 4 5
26	Accounting Manager	Patricio Simpson	Austria	1 2 3 4 5
27	Accounting Manager	Pascale Cartrain	Italy	1 2 3 4 5
28	Marketing Assistant	Elizabeth Lincoln	Germany	1 2 3 4 5
29	Marketing Assistant	Elizabeth Lincoln	Brazil	1 2 3 4 5
30	Accountant	Howard Snyder	Germany	1 2 3 4 5
31	Owner	Jaime Yorres	Italy	1 2 3 4 5
32	Accountant	Howard Snyder	Bulgaria	1 2 3 4 5
33	Accountant	Elizabeth Lincoln	Brazil	1 2 3 4 5
34	Sales Associate	Matti Karttunen	Spain	1 2 3 4 5
35	Sales Agent	Georg Pipps	USA	1 2 3 4 5
36	Marketing Manager	Pascale Cartrain	Italy	1 2 3 4 5
37	Sales Manager	Howard Snyder	England	1 2 3 4 5
38	Sales Consultant	Pascale Cartrain	England	1 2 3 4 5
39	Marketing Manager	Elizabeth Lincoln	USA	1 2 3 4 5
40	Accountant	Antonio Moreno	Germany	1 2 3 4 5
41	Sales Representative	Paul Henriot	USA	1 2 3 4 5
42	Marketing Manager	Howard Snyder	Italy	1 2 3 4 5
43	Sales Manager	Patricio Simpson	Austria	1 2 3 4 5
44	Sales Associate	Howard Snyder	Spain	1 2 3 4 5
45	Sales Associate	Hanna Moos	Spain	1 2 3 4 5
46	Sales Associate	Georg Pipps	Austria	1 2 3 4 5
47	Sales Consultant	Antonio Moreno	France	1 2 3 4 5
48	Owner	Hanna Moos	France	1 2 3 4 5
49	Owner	Howard Snyder	Brazil	1 2 3 4 5
50	Sales Agent	Pascale Cartrain	Brazil	1 2 3 4 5
51	Marketing Manager	Georg Pipps	Austria	1 2 3 4 5
52	Accountant	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
53	Sales Consultant	Howard Snyder	Argentina	1 2 3 4 5
54	Marketing Manager	Jaime Yorres	France	1 2 3 4 5
55	Sales Manager	Patricio Simpson	England	1 2 3 4 5
56	Marketing Assistant	Elizabeth Lincoln	Brazil	1 2 3 4 5
57	Sales Associate	Hanna Moos	England	1 2 3 4 5
58	Sales Consultant	Antonio Moreno	Argentina	1 2 3 4 5
59	Sales Manager	Matti Karttunen	Brazil	1 2 3 4 5
60	Marketing Manager	Pascale Cartrain	Brazil	1 2 3 4 5
61	Marketing Manager	Antonio Moreno	Austria	1 2 3 4 5
62	Marketing Manager	Howard Snyder	Spain	1 2 3 4 5
63	Marketing Assistant	Jaime Yorres	Argentina	1 2 3 4 5
64	Owner	Howard Snyder	France	1 2 3 4 5
65	Sales Representative	Antonio Moreno	Bulgaria	1 2 3 4 5
66	Sales Representative	Matti Karttunen	France	1 2 3 4 5
67	Sales Associate	Paul Henriot	Brazil	1 2 3 4 5
68	Owner	Patricio Simpson	England	1 2 3 4 5
69	Sales Representative	Pascale Cartrain	Argentina	1 2 3 4 5
70	Marketing Manager	Howard Snyder	Germany	1 2 3 4 5
71	Sales Agent	Howard Snyder	Italy	1 2 3 4 5
72	Sales Manager	Georg Pipps	Argentina	1 2 3 4 5
73	Marketing Manager	Elizabeth Lincoln	England	1 2 3 4 5
74	Sales Representative	Pascale Cartrain	Austria	1 2 3 4 5
75	Sales Representative	Elizabeth Lincoln	Austria	1 2 3 4 5
76	Sales Associate	Howard Snyder	Germany	1 2 3 4 5
77	Owner	Pascale Cartrain	Argentina	1 2 3 4 5
78	Owner	Hanna Moos	Spain	1 2 3 4 5
79	Marketing Manager	Georg Pipps	England	1 2 3 4 5
80	Sales Associate	Patricio Simpson	Germany	1 2 3 4 5
81	Sales Manager	Patricio Simpson	Brazil	1 2 3 4 5
82	Sales Manager	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
83	Sales Consultant	Matti Karttunen	Spain	1 2 3 4 5
84	Accountant	Howard Snyder	USA	1 2 3 4 5
85	Sales Associate	Elizabeth Lincoln	Austria	1 2 3 4 5
86	Accounting Manager	Hanna Moos	USA	1 2 3 4 5
87	Marketing Assistant	Paul Henriot	England	1 2 3 4 5
88	Sales Representative	Patricio Simpson	France	1 2 3 4 5
89	Sales Consultant	Antonio Moreno	USA	1 2 3 4 5
90	Sales Agent	Howard Snyder	Argentina	1 2 3 4 5
91	Owner	Antonio Moreno	Spain	1 2 3 4 5
92	Sales Consultant	Hanna Moos	USA	1 2 3 4 5
93	Sales Manager	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
94	Accountant	Jaime Yorres	Argentina	1 2 3 4 5
95	Accountant	Georg Pipps	Bulgaria	1 2 3 4 5
96	Marketing Assistant	Antonio Moreno	Bulgaria	1 2 3 4 5
97	Accounting Manager	Hanna Moos	Italy	1 2 3 4 5
98	Sales Associate	Georg Pipps	Brazil	1 2 3 4 5
99	Sales Representative	Paul Henriot	Bulgaria	1 2 3 4 5
100	Marketing Assistant	Howard Snyder	Austria	1 2 3 4 5


...151 152 153 154 155 156 157 158 159 160 ... Item 157001 to 158000 of 300000 Page: of 300 GoPage size:

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Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

About this demo
C#
VB
Download demo code files
Isolate this demo as a stand-alone application

RadGrid's virtualization feature allows you to handle hundreds of thousands of rows without negatively impacting the user experience. The control achieves this thanks to its ItemsPerView property allowing you to control the number of items loaded at a time. Users can now scroll, as well as show, hide, resize and reorder columns without any waiting time.

This demo shows how quickly Telerik's ASP.NET DataGrid can handle user interactions with 300,000 items. You can configure the component to allow scrolling through the entire data set or only through the current page by using EnableCurrentPageScrollOnly property,.

<%@ Page Language="c#" CodeFile="DefaultCS.aspx.cs" Inherits="Telerik.GridExamplesCSharp.Performance.Virtualization.DefaultCS" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <link href="styles.css" rel="stylesheet" />
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1"></telerik:RadAjaxLoadingPanel>
    <telerik:RadAjaxPanel runat="server" ID="RadAjaxPanel" LoadingPanelID="RadAjaxLoadingPanel1" CssClass="demo-container">
        <telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server"  AutoGenerateColumns="false"
            AllowSorting="true" GroupingEnabled="false"
            EnableHeaderContextMenu="true" AllowPaging="true" PageSize="1000" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView TableLayout="Fixed">
                <Columns>
                    <telerik:GridBoundColumn UniqueName="ID" HeaderText="ID" HeaderStyle-Width="50px" DataField="ID"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactTitle" HeaderText="Contact Title" HeaderStyle-Width="150px" DataField="ContactTitle"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactName" HeaderText="Contact Name" HeaderStyle-Width="150" DataField="ContactName"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="Country" HeaderText="Country" HeaderStyle-Width="100px" DataField="Country"></telerik:GridBoundColumn>
                    <telerik:GridRatingColumn UniqueName="Rating" HeaderText="Rating" HeaderStyle-Width="100px" DataField="Rating"></telerik:GridRatingColumn>
                </Columns>
            </MasterTableView>
            <ClientSettings ReorderColumnsOnClient="true" AllowColumnsReorder="true" ColumnsReorderMethod="Reorder">
                <Virtualization EnableVirtualization="true" InitiallyCachedItemsCount="2000"
                    LoadingPanelID="RadAjaxLoadingPanel1" ItemsPerView="100"/>
                <Scrolling AllowScroll="true" UseStaticHeaders="true" ScrollHeight="500px" />
                <Resizing AllowColumnResize="true" />
            </ClientSettings>
            <PagerStyle Mode="NextPrevNumericAndAdvanced"></PagerStyle>
        </telerik:RadGrid>
    </telerik:RadAjaxPanel>
    </form>
</body>
</html>

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